Interstate S-1A

Photo: USAF · Public domain

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S-1A

Interstate · S-1A

Model overview

Fleet & certification

Safety & ops history

Detailed safety & ops history coming soon — view this model's FAA Airworthiness Directives at FAA.gov.

Registry, flight-tracking and market data on the Interstate S-1A fleet — updated daily.

Fleet age

85 yearsmedian age

40s

Of the 58 registered Interstate S-1A with a known build year (85% of the 68 we track), the median age is 85 years.

Individual S-1A airframes by tail number — registration history, operator and lineage.